A robust electrical insulator

By precisely matching the positioning and mounting posts with the bearing plate and designing the buffer components, the problem of loosening of electrical insulators under vibration and thermal expansion and contraction is solved, achieving stable connection and extending service life.

CN224682874UActive Publication Date: 2026-08-25ZHENJIANG WANGZHENG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202522055713.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-08-25
Estimated Expiration
2035-09-24

AI Technical Summary

Technical Problem

Traditional electrical insulator connection structures are prone to loosening under long-term vibration and cyclic stress of thermal expansion and contraction, leading to poor contact and reduced connection strength.

Method used

The system employs a precise matching of the positioning mounting post and the bearing plate, combined with the fitting structure of the positioning sleeve and the telescopic sleeve. Through multiple connections of fastening rods and fastening bolts, it ensures the stable installation of the electrical insulator and utilizes the compression spring in the buffer assembly to buffer the insertion impact force.

Benefits of technology

It achieves stable fixation of electrical insulators, avoids lateral displacement and loosening, extends service life, and provides effective protection for insulators made of brittle materials, adapting to vibration and external interference.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a firm type electric insulator, including electric insulator body, its bottom is equipped with installation component, can fix the body in the bearing plate, and the bearing plate opens the mounting hole, and the hole top both sides are equipped with the buffer component, and the bottom both sides are equipped with the fastening component, both are cooperated with installation component, installation component contains the fixed plate of body bottom, and the board bottom is equipped with the butt joint disc, and the disc bottom extends the locating mounting column of matching mounting hole, and the column bottom is connected the mounting block, and the block is equipped with the fastening rod in the multiple groups of the hole, and the both ends of rod are cooperated with fastening component, and the fastening component has the fixed mounting column of corresponding fastening rod, and the column top fastening bolt passes through the rod end through -hole fixed, the locating mounting column is accurately matched with the mounting hole, and is combined with the telescopic sleeve sleeve, realizes the preliminary positioning and prevents the deviation, and the multiple fastening rods are connected with the bolt, and the rod length adapts the mounting column interval, and the stress is even, the mounting column outer wall spacing plate prevents fastening rod axial displacement, and multiple structure anti -vibration collision.
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Description

Technical Field

[0001] This utility model specifically relates to a robust electrical insulator. Background Technology

[0002] Electrical insulators, as key materials that impede the flow of electric charge, play a dual core role in power systems, electronic equipment, and semiconductor manufacturing, providing both insulation and structural support. Their performance directly determines the operational safety and service life of electrical equipment. With the upgrading of ultra-high voltage power transmission technology, breakthroughs in advanced semiconductor processes, and the trend towards miniaturization and high power in electrical equipment, stringent requirements have been placed on the comprehensive performance of electrical insulators. These insulators must not only meet electrical performance indicators such as high dielectric strength and low dielectric loss, but also adhere to higher standards in terms of mechanical robustness and environmental adaptability.

[0003] Traditional ceramic and glass insulators offer high insulation resistance and good weather resistance, making them the preferred materials for most insulators. However, insulators typically require metal fittings for secure connection to other components. Existing connection structures are mostly simple threaded connections, adhesive bonding, or crimping. Under long-term vibration and cyclic stress from thermal expansion and contraction, these connections are prone to loosening, leading to poor contact and reduced connection strength.

[0004] Therefore, it is necessary to invent a robust electrical insulator to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a robust electrical insulator.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a robust electrical insulator, comprising an electrical insulator body, wherein a mounting assembly is provided at the bottom of the electrical insulator body, and the electrical insulator body is fixed to a support plate by the mounting assembly; The support plate is provided with mounting holes, and buffer components are provided on both sides of the top of the mounting holes. Fastening components are provided on both sides of the bottom of the mounting holes. The buffer components and the fastening components are installed in conjunction with the mounting components. The mounting assembly includes a fixing plate disposed at the bottom of the electrical insulator body, a mating plate at the bottom of the fixing plate, a positioning mounting post extending from the bottom of the mating plate to match the mounting hole, a mounting block extending from the bottom of the positioning mounting post, a plurality of insertion holes in the mounting block, fastening rods installed in the plurality of insertion holes, and the two ends of the fastening rods cooperating with the fastening assembly for installation. The fastening assembly includes a fixed mounting post corresponding to the fastening rod, and a fastening bolt is installed on the fixed mounting post. The fastening bolt is fixed to the fixed mounting post through the through holes at both ends of the fastening rod.

[0007] Preferably, the buffer assembly includes fixed sleeves disposed on both sides of the mounting hole, the fixed sleeves having symmetrical through grooves, a telescopic sleeve installed inside the fixed sleeves, a positioning post installed in the through groove on the outer bottom of the telescopic sleeve, a compression spring between the bottom of the telescopic sleeve and the bottom of the fixed sleeve, a receiving groove for accommodating the compression spring on the inner bottom of the telescopic sleeve, and positioning sleeves matching the telescopic sleeves on both sides of the bottom of the fixed plate located at the bottom of the mating plate, the positioning sleeves being sleeved outside the telescopic sleeves, and the entire electrical insulator body extending and retracting above the telescopic sleeves.

[0008] Preferably, the length of the through groove is such that the positioning post moves from the top to the bottom of the through groove, that is, the telescopic sleeve moves within the range of the through groove in conjunction with the compression spring, and the size of the through groove matches the size of the positioning post.

[0009] Preferably, there are multiple fixed mounting columns, each corresponding to the through hole. The outer wall of the fixed mounting column is provided with a limiting plate, which is placed on one side of the through hole. The fixed mounting column is provided with a screw hole that matches the fastening bolt. The fastening bolt passes through one side of the through hole and is connected in the screw hole.

[0010] Preferably, both the upper and lower surfaces of the through hole are flat, and the overall length of the fastening rod matches the distance between the two fixed mounting posts.

[0011] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. The positioning mounting column of this utility model is precisely matched with the mounting hole of the bearing plate. Combined with the fitting structure of the positioning sleeve and the telescopic sleeve, the initial positioning of the electrical insulator body is achieved, avoiding lateral displacement during installation. The mounting block is inserted into the fastening rod through multiple sets of insertion holes. The two ends of the fastening rod are connected to the fastening bolts of the fixed mounting column through through holes. The length of the fastening rod is perfectly matched with the spacing of the fixed mounting column, ensuring uniform force and no loosening. The limiting plate on the outer wall of the fixed mounting column fits against the side of the fastening rod to prevent axial displacement of the fastening rod during long-term use. The superposition of multiple structures can effectively resist interference such as vibration and external impact. 2. During the installation process of this utility model, when the electrical insulator body is pressed down, the telescopic sleeve moves down along the through groove of the fixed sleeve and compresses the spring, which can buffer the hard impact force when inserted and prevent the insulator body made of brittle materials such as ceramics from cracking due to excessive instantaneous force. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the overall installation structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the mounting components and the support plate of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the fastening component of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the buffer component of this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the disassembled structure of the buffer component of this utility model. Figure 2 .

[0014] Explanation of reference numerals in the attached figures: 1. Electrical insulator body; 2. Mounting assembly; 21. Fixing plate; 22. Connecting plate; 23. Positioning mounting post; 24. Mounting block; 25. Insertion hole; 26. Fastening rod; 27. Through hole; 28. Positioning sleeve; 3. Bearing plate; 31. Mounting hole; 4. Buffer assembly; 41. Fixing sleeve; 42. Through groove; 43. Telescopic sleeve; 44. Positioning post; 45. Compression spring; 46. Receiving groove; 5. Fastening assembly; 51. Fixing mounting post; 52. Fastening bolt; 53. Limiting plate; 54. Screw hole. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] This utility model provides, for example Figure 1-5 The present invention relates to a robust electrical insulator, comprising an electrical insulator body 1, a mounting assembly 2 at the bottom of the electrical insulator body 1, and the electrical insulator body 1 being fixed to a support plate 3 by the mounting assembly 2. The support plate 3 is provided with mounting holes 31. Buffer components 4 are provided on the top two sides of the mounting holes 31, and fastening components 5 are provided on the bottom two sides of the mounting holes 31. Both the buffer components 4 and the fastening components 5 are installed in conjunction with the mounting components 2. Mounting assembly 2 includes a fixing plate 21 disposed at the bottom of the electrical insulator body 1. The bottom of the fixing plate 21 is provided with a mating plate 22. The bottom of the mating plate 22 extends a positioning mounting post 23 with matching mounting holes 31. The bottom of the positioning mounting post 23 extends a mounting block 24. The mounting block 24 is provided with multiple insertion holes 25. Fastening rods 26 are installed in the multiple insertion holes 25. The two ends of the fastening rods 26 are fitted with the fastening assembly 5 for installation. Specifically, the fastening assembly 5 includes a fixed mounting post 51 corresponding to the fastening rod 26, and a fastening bolt 52 is installed on the fixed mounting post 51. The fastening bolt 52 is fixed to the fixed mounting post 51 through the through holes 27 at both ends of the fastening rod 26.

[0017] Specifically, the buffer assembly 4 includes fixed sleeves 41 disposed on both sides of the mounting hole 31. The fixed sleeves 41 are provided with symmetrical through grooves 42. A telescopic sleeve 43 is installed inside the fixed sleeves 41. A positioning post 44 is provided on the outer side of the bottom of the telescopic sleeve 43 and installed in the through groove 42. A compression spring 45 is provided between the bottom of the telescopic sleeve 43 and the bottom of the fixed sleeve 41. A receiving groove 46 is provided on the inner side of the bottom of the telescopic sleeve 43 to accommodate the compression spring 45. The bottom of the fixed plate 21 is provided on both sides of the mating plate 22 with positioning sleeves 28 that match the telescopic sleeve 43. The positioning sleeves 28 are sleeved on the outside of the telescopic sleeve 43, and the entire electrical insulator body 1 moves telescopically above the telescopic sleeve 43.

[0018] Specifically, the length of the through groove 42 is sufficient for the positioning post 44 to move from the top to the bottom of the through groove, that is, the telescopic sleeve 43 moves within the range of the through groove 42 in conjunction with the compression spring 45, and the size of the through groove 42 matches the size of the positioning post 44.

[0019] Specifically, there are multiple fixed mounting posts 51, each corresponding to the through hole 27. The outer wall of the fixed mounting post 51 is provided with a limiting plate 53, which is placed on one side of the through hole 27. The fixed mounting post 51 is provided with a screw hole 54 for matching fastening bolt 52. The fastening bolt 52 passes through the through hole 27 and is connected in the screw hole 54.

[0020] Specifically, the upper and lower surfaces of the through hole 27 are both flat, and the overall length of the fastening rod 26 matches the distance between the two fixed mounting posts 51.

[0021] In this embodiment, the electrical insulator body 1 is made of ceramic or high-strength insulating plastic; the bearing plate 3 is made of metal or flame-retardant insulating board, and the mounting holes 31 are machined according to the design dimensions; in the mounting assembly 2, the fixing plate 21 and the electrical insulator body 1 are integrally formed or pre-fixed with bolts, the mating plate 22 is welded or bonded to the bottom of the fixing plate 21, the positioning mounting post 23 is coaxially set with the mating plate 22, the mounting block 24 has 3-5 evenly distributed insertion holes 25 preset inside, the fastening rod 26 is made of metal, and through holes 27 matching the fastening bolts 52 are drilled at both ends, and the length of the fastening rod 26 is consistent with the spacing of the fixing mounting posts 51 on both sides of the bottom of the bearing plate 3.

[0022] Specifically, on both sides of the top of the mounting hole 31 on the bearing plate 3, the fixing sleeves 41 are fixedly installed by bolts to ensure that the two fixing sleeves 41 are symmetrically distributed; the compression spring 45 is placed at the bottom of the fixing sleeve 41, and then the telescopic sleeve 43 is put into the fixing sleeve 41, so that the positioning post 44 at the bottom of the telescopic sleeve 43 is embedded in the through groove 42 of the fixing sleeve 41, and the top of the compression spring 45 is embedded in the receiving groove 46 at the bottom of the telescopic sleeve 43. At this time, the telescopic sleeve 43 can move up and down along the through groove 42, and the range of movement is determined by the length of the through groove 42.

[0023] Specifically, the positioning mounting post 23 at the bottom of the electrical insulator body 1 is aligned with the mounting hole 31 of the support plate 3 and slowly inserted downwards, so that the positioning sleeve 28 at the bottom of the fixing plate 21 is fitted over the telescopic sleeve 43 until the mounting block 24 completely passes through the mounting hole 31 and extends out of the bottom of the support plate 3. During the process, the positioning sleeve 28 cooperates with the telescopic sleeve 43 to play a preliminary positioning role for the electrical insulator body 1. At the same time, the telescopic sleeve 43 is compressed by the pressure of the fixing plate 21 to compress the compression spring 45, which buffers the impact force during insertion.

[0024] Specifically, a fastening rod 26 is inserted from one side of the mounting hole 25 of the mounting block 24, so that the through holes 27 at both ends of the fastening rod 26 are aligned with the fixed mounting posts 51 on both sides of the bottom of the bearing plate 3; the fastening bolt 52 is passed through one side of the through hole 27 and screwed into the screw hole 54 in the fixed mounting post 51 until the head of the fastening bolt 52 is tightly fitted with the fastening rod 26, and at the same time the limiting plate 53 on the outer wall of the fixed mounting post 51 is fitted with the other side of the fastening rod 26 to form a two-way fixation; one fastening rod 26 is installed in each mounting hole 25 to ensure that the mounting block 24 is evenly stressed, thus completing the installation and fixation of the entire electrical insulator.

[0025] In this embodiment, the positioning mounting post 23 cooperates with the mounting hole 31 to achieve initial positioning, and 3-5 sets of fastening rods 26 are connected to the fixed mounting post 51 through fastening bolts 52 to lock the mounting block 24 from the bottom in all directions, so as to prevent the electrical insulator body 1 from shifting laterally or loosening; at the same time, the limiting plate 53 further restricts the displacement of the fastening rods 26, ensuring the stability of the fixed structure during long-term use and effectively coping with scenarios such as vibration and external force collision.

[0026] In this embodiment, the buffer component 4, through the cooperation of the compression spring 45 and the telescopic sleeve 43, can buffer the insertion impact force during the installation of the electrical insulator, avoiding damage to the component due to hard contact; in daily use, if the electrical insulator is subjected to an external force in the vertical direction, the compression spring 45 can absorb the impact force through telescopic deformation, reduce the direct effect of the external force on the electrical insulator body 1, and extend its service life, especially suitable for electrical insulators made of brittle materials such as ceramics.

[0027] In this embodiment, during installation, the cooperation between the positioning sleeve 28 and the telescopic sleeve 43 can help to quickly align the installation position without repeated adjustments; the fixed mounting post 51 has multiple corresponding through holes 27, and the number of fastening rods 26 can be flexibly selected according to the weight and size of the electrical insulator to adapt to different specifications of electrical insulator body 1; the through groove 42 and the positioning post 44 are size-matched, which not only ensures smooth movement of the telescopic sleeve 43, but also avoids shaking and improves installation accuracy.

[0028] In this embodiment, the electrical insulator body 1 is made of a high-insulation material, and the components in the mounting assembly, buffer assembly and fastening assembly that are in direct contact with the electrical insulator are all made of insulating material or have been insulated to avoid the metal components from conducting electricity and affecting the insulation effect; if the bearing plate 3 is made of insulating material, the overall insulation performance can be further improved, which is suitable for high-voltage circuits, electrical equipment and other scenarios with high insulation requirements.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A robust electrical insulator, characterized in that: It includes an electrical insulator body (1), the bottom of which is provided with a mounting assembly (2), and the electrical insulator body (1) is fixed to the support plate (3) by the mounting assembly (2); The support plate (3) is provided with mounting holes (31), and buffer components (4) are provided on the top two sides of the mounting holes (31). Fastening components (5) are provided on the bottom two sides of the mounting holes (31). The buffer components (4) and the fastening components (5) are both installed in conjunction with the mounting components (2). The mounting assembly (2) includes a fixing plate (21) disposed at the bottom of the electrical insulator body (1). The bottom of the fixing plate (21) is provided with a mating plate (22). The bottom of the mating plate (22) extends a positioning mounting post (23) that matches the mounting hole (31). The bottom of the positioning mounting post (23) extends a mounting block (24). The mounting block (24) is provided with a plurality of insertion holes (25). Fastening rods (26) are installed in the plurality of insertion holes (25). The two ends of the fastening rods (26) are fitted with the fastening assembly (5). The fastening assembly (5) includes a fixed mounting post (51) corresponding to the fastening rod (26), and a fastening bolt (52) is installed on the fixed mounting post (51). The fastening bolt (52) is fixed on the fixed mounting post (51) through the through holes (27) at both ends of the fastening rod (26).

2. A robust electrical insulator according to claim 1, characterized in that: The buffer assembly (4) includes a fixed sleeve (41) disposed on both sides of the mounting hole (31). The fixed sleeve (41) is provided with symmetrical through grooves (42). A telescopic sleeve (43) is installed inside the fixed sleeve (41). A positioning post (44) is provided on the outer side of the bottom of the telescopic sleeve (43) and installed in the through groove (42). A compression spring (45) is provided between the bottom of the telescopic sleeve (43) and the bottom of the fixed sleeve (41). A receiving groove (46) for accommodating the compression spring (45) is provided on the inner side of the bottom of the telescopic sleeve (43). The bottom of the fixed plate (21) is located on both sides of the docking plate (22) and a positioning sleeve (28) matching the telescopic sleeve (43) is provided. The positioning sleeve (28) is sleeved on the outside of the telescopic sleeve (43), and the entire electrical insulator body (1) moves telescopically above the telescopic sleeve (43).

3. A robust electrical insulator according to claim 2, characterized in that: The length of the through groove (42) is such that the positioning post (44) moves from the top to the bottom of the through groove, that is, the telescopic sleeve (43) moves within the range of the through groove (42) in conjunction with the compression spring (45), and the size of the through groove (42) matches the size of the positioning post (44).

4. A robust electrical insulator according to claim 1, characterized in that: The fixed mounting post (51) is provided in multiple ways, and each of them is installed corresponding to the through hole (27). The outer wall of the fixed mounting post (51) is provided with a limiting plate (53). The limiting plate (53) is placed on one side of the through hole (27). The fixed mounting post (51) is provided with a screw hole (54) matching the fastening bolt (52). The fastening bolt (52) passes through the through hole (27) and is connected in the screw hole (54).

5. A robust electrical insulator according to claim 1, characterized in that: The upper and lower surfaces of the through hole (27) are both flat, and the overall length of the fastening rod (26) matches the distance between the two fixed mounting posts (51).